[IP_VS]: Remove extra __ip_vs_conn_put() for incoming ICMP.

Remove extra __ip_vs_conn_put for incoming ICMP in direct routing
mode. Mark de Vries reports that IPVS connections are not leaked anymore.
Signed-off-by: NJulian Anastasov <ja@ssi.bg>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv4/ipvs/ip_vs_xmit.c

@@ -508,7 +508,6 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 			rc = NF_ACCEPT;
 		/* do not touch skb anymore */
 		atomic_inc(&cp->in_pkts);
-		__ip_vs_conn_put(cp);
 		goto out;
 	}